Meridian Lossless Packing
Meridian Lossless Packing, also known as Packed PCM (PPCM), is a lossless compression technique for compressing PCM audio data developed by Meridian Audio, Ltd. MLP is the standard lossless compression method for DVD-Audio content (often advertised with the Advanced Resolution logo) and typically provides about 1.5:1 compression on most music material. All DVD-Audio players are equipped with MLP decoding, while its use on the discs themselves is at their producers' discretion.
The Meridian Lossless Packing logo
The Advanced Resolution logo
Dolby TrueHD, used in Archival Disc Blu-ray and HD DVD, employs MLP, but compared with DVD-Audio, adds higher bit rates, 8 full-range channels, extensive metadata, and custom speaker placements (as specified by SMPTE).
MLP in packaged media formats
| Media format | Status | Channels | Max. bit rate |
|---|---|---|---|
| HD DVD | Mandatory | 2 to 8 | 18 Mbit/s |
| Blu-ray | Optional | 2 to 8 | 18 Mbit/s |
| DVD-Audio | Mandatory | 1 to 6 | 9.6 Mbit/s |
| DVD-Video | Not available | ||
See also
- Direct Stream Transfer
- FLAC
- Monkey's Audio
- TTA
- WavPack
- Master Quality Authenticated
External links
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